51016066066 has 16 divisors (see below), whose sum is σ = 87490728000. Its totient is φ = 21855374640.

The previous prime is 51016066051. The next prime is 51016066069. The reversal of 51016066066 is 66066061015.

It is not an unprimeable number, because it can be changed into a prime (51016066069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684441 + ... + 755308.

It is an arithmetic number, because the mean of its divisors is an integer number (5468170500).

Almost surely, 2^51016066066 is an apocalyptic number.

51016066066 is a deficient number, since it is larger than the sum of its proper divisors (36474661934).

51016066066 is a wasteful number, since it uses less digits than its factorization.

51016066066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442289.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 51016066066 in words is "fifty-one billion, sixteen million, sixty-six thousand, sixty-six".